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https://issues.apache.org/jira/browse/FLINK-1344?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Paris Carbone updated FLINK-1344:
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Description:
Source definitions in the scala-api pass a collector to the UDF, thus enforcing
an imperative style for defining custom streams. To encourage a purely
functional coding style in the streaming scala-api while also adding some
interoperability with scala constructs (ie. Seq and Streams) it would be nice
to add an implicit conversion from Seq[T] to DataStream[T].
(An upcoming idea would be for sinks to also support wrapping up flink streams
to scala streams for full interoperability with scala streaming code.)
was:
Source definitions in the scala-api pass a collector to the UDF, thus enforcing
an imperative style for defining custom streams. In order maintain a purely
functional coding style in the streaming scala-api while also adding some
interoperability with scala constructs (ie. Seq and Streams)
[UPDATE] Since there is already a fromCollection(Seq) function we can simply
add an implicit conversion from Seq[T] to DataStream[T].
(An additional idea would be for sinks could also support wrapping up flink
streams to scala streams for full interoperability with scala streaming code.)
> Add implicit conversion from scala streams to DataStreams
> ---------------------------------------------------------
>
> Key: FLINK-1344
> URL: https://issues.apache.org/jira/browse/FLINK-1344
> Project: Flink
> Issue Type: New Feature
> Components: Streaming
> Reporter: Paris Carbone
> Assignee: Paris Carbone
> Priority: Trivial
>
> Source definitions in the scala-api pass a collector to the UDF, thus
> enforcing an imperative style for defining custom streams. To encourage a
> purely functional coding style in the streaming scala-api while also adding
> some interoperability with scala constructs (ie. Seq and Streams) it would be
> nice to add an implicit conversion from Seq[T] to DataStream[T].
> (An upcoming idea would be for sinks to also support wrapping up flink
> streams to scala streams for full interoperability with scala streaming code.)
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